Revolving bookcase



(No M0de1,}

W. RBERGVER. REVOLVING BOOKGASE..

Patented Peb. 7, 1893.

No. ML2?? /N VENTO/8,

MMJ

QQ/ila@ A TTORIVE YS Parnu lWILLIAM F. BERGER, OF MORAVIA, NEW YORK.

REVOLVING BOOKCASE.

SPECIFICATION forming part of Letters Patent No. 491,277, dated February 7, 1893.

Application led April 13, 1892. Serial No. 428,938. (No model.)

To @ZZ whom z3 may concern,.-

Be it known that l, VILLIAM F. BERGER, of Moravia, in the county of Cayuga, in the State of New York, have invented new and useful Improvements in Revolving` Bookcases, of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

lily invention relates to revolving, portable bookcases.

My object is to provide a revolving bool;- case which may be readily rendered portable, by constructing it in knock-down shape, applicable to be readily put together whenever desired: cheap, durable in construction and of great utility.

My invention consists first, in constructing the central spindle telescopic, so that it may be readily taken apart, so as to occupy a minimum amount et" space; and second, in providing the various shoulders upon the shaft with rings, vitried or otherwise, for the purpose oi facilitating rotation; and in the several other novel features of construction and operation hereinafter described and which are specilically set forth in the claim hereunto annexed. lt is constructed as follows, reference being had to the accompanying drawings, in which Figure l, is a side elevation of the bookcase, complete. Fig. 2, is a side view of the hook-case,having the vertical slats removed. Fig. 3, is a vertical section of the spindle. Fig. Ll, is a view of the upper end of the spindle, showing its engagement with the top shelf oi the case. Fig. 5, is a view of one of the rings which set upon the shoulder of the spindle.

A-, is the spindle havingit-s lower sections constructed hollow, as shown, and provided at their upper inner ends with threads -a adapted to engage with the external thread -Zrupon the end of the section. The interior of each of the sections is a little larger, as shown at c, than the exterior of the succeeding section, so that when the sections are screwed in, they will all drop down into the interiorof the base section. `lt will,there fore, be observed that I am able to collapsea spindle of any length into the length of its lower section, as above specified. The top of each section, except the upper one, forms a shoulder as shown at -d-, upon which I place rings -eeither of glass, other vitried material or case-hardened steel which serve to facilitate the rotation of the case -B which is constructed with horizontal shelves (1- resting upon the rings upon the shoulders of the spindle, as above set forth.

The upper spindle is preferably constructed conical upon its Lipper end, and is adapted to engage with the case, which is provided with vitritied or steel plate -D-in the lower face of the upper shell", provided with a recess of substantially the same form as the upper end of the spindle upon which it is adapted to rotate.

The spindle -A is mounted upon feet llwhich may be provided with suitable casters in the ordinary way.

It will be observed that this case may be readily and easily shipped in knock-down form by first removing the feet -E- from the spindle, then removing the vertical slats from the shelves -C-, then removing the shelves and finally telescoping the spindle -A- when the ent-ire case may be packed to occupy the minimum amount of space in shipping, storage, dro.

Having described my invention, what I claim 1s:

In the revolving bool; case the combination spindle being rounded or cone shaped, and 9 adapted to rotate within the recess of the plate 1), and the plate D secured to the lower face centrally of the upper shelf as set forth.

In witness whereof I have hereunto set my hand this 7th day of April, 1892.

VILLIAM F. BERGER..

In presence of" HOWARD VVP. DENIsoN, J. FITCH WALTERs.

IOO 

